Automatic control system for railway classification yards



April 19, 1966 D. P. FITZSIMMONS ETAL AUTOMATIC CONTROL SYSTEM FOR RAILWAY CLASSIFICATION YARDS Filed Aug. 7, 1957 6'? Sheets-Sheet l Radar Radar kaaaz' INVEN ToRs. David 1? Filzsimmolzs and William A. 1Z0b$012 J THEIR ATTORJVE'Y Aprll 1966 D. P. FITZSIMMONS ETAL 3,

AUTOMATIC CONTROL SYSTEM FOR RAILWAY CLASSIFICATION YARDS Filed Aug. 7, 1957 67 Sheets-Sheet 2 1 a +12 1}- Tr+i 0v \PZM? T5 01;! 45 p217 1222 W I I I I I h I h I 0L2! 4m 97 i 7 54W 14 I Radar Radar 4% 0121 Gk? 5 I (Z11 i Radar i Karla! 5 6WL 67 Sheets-Sheet 5 IN V EN TORS.

THEIR ATTORNEY April 19, 1966 D. P. FITZSIMMONS ETAL AUTOMATIC CONTROL SYSTEM FOR RAILWAY CLASSIFICATION YARDS Filed Aug. 7, 195'? Fly? 4.

David R Fitzsimmolzs and William ALRObisozz fl? BY W qllullllllllllllll- & u LW LW 6 fiV U n 00K 0 S I W w: 1 I n 5 WT; I W mu MM 2, 9 MRS 5 w. M 1, H m PJOU 5% d -D V ma M E 0 M 1 r -L mi U M W W 3w u 7 p 1 W m F E ZW 7 a L w dw z mmm A 9 r 0 ww l 2 0m 1 V ,1 0. 51 W m m m April 19, 1966 D. P. FITZSIMMONS ETAL AUTOMATIC CONTROL SYSTEM FOR RAILWAY CLASSIFICATION YARDS 6'7 Sheets-Sheet 4 Filed Aug. '7, 1957 1 l l 1 I 1 I I I 1 Signal Generaior Generazor Generzzcor Signal Signal Rwd 40 fienerazor INVENTORS. David R Fizzlsimmolzs' and Lilliam A. Robison fit THEIR ATTORNEY April 1966 D. P. FITZSIMMONS ETAL 3,247,372

AUTOMATIC CONTROL SYSTEM FOR RAILWAY CLASSIFICATION YARDS Filed Aug. '7. 1957 67 Sheets-Sheet 5 l" 194,5 I W51 Time-1:1 W

Axl e laamer Axle Track Fullness W Z5 Fig 6.

INVENTORS. David 12 Fizzsz'mmom and William Akobison J1:

THEIR A T TORNE' Y April 19, 1966 o. P. FITZSIMMONS ETAL 3, 7,

AUTOMATIC CONTROL SYSTEM FOR RAILWAY CLASSIFICATION YARDS Filed Aug. 7, 1957 67 Sheets-Sheet 7 6 1 1721] i a i I T i Wei 11 f a El Radar 1 W [Zelaraer Pres- 60 VHeaeI' 1 5 sure Gold/rel ill]? 52 W 11 577 circuits V a a V g 58 W a I F R1 5 i 1 WT W i 1 Storage '*-1 1] i r i E 5 Bank {b 211: TAU f TAU i fizaraye I i c I i r 61 L? 7 Speed A59 Confrol R1 V Knfpeed 1 Seleczol FMS Fzlgr 8.

INVENTORS. David BFz'zzsimmans and William A. Robison [1:

THEIR AT TORIVE'Y D. P. FITZSIMMONS ETAL 3,247,372 AUTOMATIC CONTROL SYSTEM FOR RAILWAY April 19, 1966 CLASSIFICATION YARDS 67 Sheets-Sheet 8 Filed Aug. '7, 1957 ,6 0V 2 Ha V40. 7 "WWZ W M p m T Z LL g 9 2m 2m Q mg 0 A a A e n r w w R r EQ ks w mm m P a M e l w m w 5 0 0 5 w e V R s V w 5 mm L r W a M W M nwlhw d W e f. e m 9 u k v V 2T a A HB m 5 V R r a M 0 0 r 8 L .r J B 5 w m m E a a 5 w M Y W W R b d m V 7 C b N .V I d e 1 R w a c d* m N 5 Y 5 Flya THEIR ATTORNEY April 19, 1966 D. P. FITZSIMMONS ETAL 3,247,372 AUTOMATIC CONTROL SYSTEM FOR RAILWAY CLASSIFICATION YARDS Filed Aug. '7, 1957 67 Sheets-Sheet 9 M ji f jwzim u'" u 1/ /I u 1/ 21 6 &-- B A 5P5 Ban]; Bank Bank 5123 apfi Eb J'zorage Sioraye Szforzzye TAU Route Route Fig 10.

INVENTORS. David 12 Fizzsz'mmom and William A. Robz'son J1: BY

w. A .QtR/T THEIR ATTORNEY April 19, 1966 D. P. FITZSIMMONS ETAL 3,247,372 AUTOMATIC CONTROL SYSTEM FOR RAILWAY CLASSIFICATION YARDS Filed Aug. 7, 1957 67 Sheets-Sheet 1O 1'4 Switch ozzrol 6E0 T Rouze 6 Track; Bank Bank g 5,14 group Route lZezfal'der m0 1"4 1"4 W and 4 Szaraye Sioraye T40 S it h Traci:

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Control Razz 62 I M I 1 k E w Q CLV u g Q E N Rania B A Q Bank Bank Routg 7 "6 Group 12 5601'47 Stanly Sum-Z1612 Trackd W 1 I Fig? 11.

April 19, 1966 o. P FITZSIMMONS ETAL AUTOMATIC CONTROL SYSTEM FOR RAILWAY CLASSIFICATION YARDS 67 Sheets-Sheet 11 Filed Aug. 7, 195'? ULIT n p I b I I if i -i i- -l- B /E g C J m m e Lm V p. I a b .V d Y g 8 L 5 i W i Mw r a z a W I 0L m H0 0 a U a V a 2, m m e m 0 a K1 W 1L d m "a 0. y b a R 1WD 1% I 0a t C m 0 2 R; 0 m e m a v 1w 2 m 2 m b w M 5 8 Pg W bm n W P5 n fi m L k MW 8 n m 0 C H 2 a m M m PMW .1 an w w? F e M V w w V a r a m a 2 2 Route THEIR ATTflR/VEY April 19, 1966 D. P. FITZSIMMONS ETAL AUTOMATIC CONTROL SYSTEM FOR RAILWAY CLASSIFICATION YARDS 6'7 Sheets-Sheet 12 Filed Aug. 7, 1957 Fullness Szarage 25 P? Track m MM m rm wmse wwkv ma V m mum n 2 mm n r 1 c I W 2 w a w MM w Q? r el n e d I fi m m M m 5 W [M wm 1 min 1 r k a P m0 3 Wm 2mm v m m h n 50 W w n a e a 5 5 l V n V t 5 u 0 b V V5 V .W I E l I] 4 e M M i 2% mV n 4 M RW fiW 0L n E 0 K R h d u w .v c W m A m b n m b L w Rollie Route INVENTORS. David R Fizzsimmolzi and William A.R0bli5012 J1: BY

Fig? 15.

1/) THEIR ATTORNEY April 1966 D. P. FITZSIMMONS ETAL 3,247,372

AUTOMATIC CQNTROL SYSTEM FOR RAILWAY CLASSIFICATION YARDS Filed Aug. 7, 1957 67 Sheets-Sheet 15 k may?! 4 My T1 1 r a a T2 I Z613? R? I [227719 Eezarder Pres- Radar IZTE I U sure Control (Meier Swufciz L Gonzml i l (6 W a i 1mm B 5 Error Signal 1-; J

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THEIR A T TORIVE Y April 19, 1966 D. P. FITZSIMMONS ETAL AUTOMATIC CONTROL SYSTEM FOR RAILWAY CLASSIFICATION YARDS 67 Sheets-Sheet 16 Filed Aug. 7, 1957 d w E M 5 J Y mmm E E 5 RN N W m I 5 0 T z E T w A F 4 m 2. Q Q g g g Q N G A um ww R 5% Sm E SE fix @R wk 3 @w my x T D m B Q 3 w 3 a N \w Ev Q S @R *QR mi ww ww $R SA @w E 3 w Ev b m. R S R g mm QR SN wk SN Ai SN $R $R SN @w @w 3% NM Q S m %.N K A Q Q Q Q E -R @R ER Sp @N MQ R R SM -R w: gm 5w April 19, 1966 Filed Aug. 7. 1957 D. P. FITZSIMMONS ETAL AUTOMATIC CONTROL SYSTEM FOR RAILWAY CLASSIFICATION YARDS 67 Sheets-Sheet 16 p l 1966 D. P. FITZSIMMONS ETAL 3,

AUTOMATIC CONTROL SYSTEM FOR RAILWAY CLASSIFICATION YARDS 6'7 Sheets-Sheet 1? Filed Aug. 7, 1957 Mn Vlocdy jlleen m 5 i Z W V T 0 a V M M! n m. A H Y 1 a: M m #1 M z P H a z J W w w l 4 d flu. /m u 5 .1. B H w V d n 0% W 141 u n n P F A V w u I n 5 Fr llllllllll IIL a b a d 5 0 J 5 5 M Z CLASSIFICATION YARDS 6'7 Sheets-Sheet 1 9 MBIT April 1966 D. P FITZSIMMONS ETAL AUTOMATIC CONTROL SYSTEM FOR RAILWAY Filed Aug. 7, 1957 7 W- 1/ 0 7 1 Z A. Z M

4L Z 5 m 1 5 my a N MW L n W 5 m a b c m m y M 1 H I .i!|| 0 a 020% w w z W hi 1 a W V 44 54 5 z B m aw B 1 ,!4 V C M FO/O 0% 5 o M m I 5 m R 5 5 W l- MO f m ||.l||ld H 3 F WV W1C April 19, 1966 D P FITZSIMMONS ETAL AUTOMATIC CONTROL SYSTEM FOR RAILWAY CLASSIFICATION YARDS 6'7 Sheets-Sheet 20 Filed Aug. 7, 1957 a w w e w s a m 

11. APPARATUS OF THE CLASS DESCRIBED, COMPRISING, IN COMBINATION, A STRETCH OF RAILWAY TRACK OF PREDETERMINED SHAPE, LENGTH AND GRADE, A CAR RETARDER LOCATED AT THE ENTRANCE END OF SAID STRETCH, MEANS FOR MEASURING THE TANGENT TRACK ROLLING RESISTANCE OF A CUT OF CARS APPROACHING SAID RETARDER, MEANS FOR MEASURING THE CURVED TRACK ROLLING RESISTANCE OF THE CUT, COMPUTING MEANS RESPONSIVE TO BOTH SAID MEASURING MEANS FOR COMPUTING THE SPEED AT WHICH THE CUT SHOULD ENTER SAID STRETCH TO EMERGE AT A PREDETERMINED SPEED, AND MEANS ACTUATED BY SAID COMPUTING MEANS FOR CONTROLLING THE BRAKING FORCE EXERTED BY SAID RETARDER TO REDUCE THE SPEED OF SAID CUT TO SAID COMPUTED SPEED. 